iBattery is a gadget for your desktop that shows the current lifespan of your notebook battery. It is very simple to install and set up, even by users with little or no experience in software tools.

The interface is based on a very small frame that contains a green meter which turns to red when the battery is almost depleted. But you can choose another color from the Options panel, between blue, fire, pink and variable.

The frame can be moved to any position on the screen. Thanks to the default options provided by the operating system, you can adjust the window's opacity and make it stay on top of other frames. This way, iBattery does not interrupt user activity while you're working in other applications, and you can get a quick peek at the battery level.

iBattery includes several other configuration options. You can change the sound effects (iPhone, Windows, Engine) or disable them altogether, as well as hide the percentage, remaining time and status icon from the frame.

The small gadget is not a burden to the computer's overall performance, as it uses a very low amount of CPU and RAM. It has a good refresh rate and delivers accurate results. No error dialogs have been shown in our tests, and iBattery did not hang or crash.

iBattery was reviewed by Elena Opris, last updated on August 8th, 2013